New Lego MINDSTORMS NXT Motor Block

In 2006, the Lego MINDSTORMS® RCX blocks became NXT blocks. They have a quite surprising avant-garde shape — in place of the traditional compact RCX block, for the NeXT generation motor the Lego engineers have opted for a ‘pistol’ profile.

This block comprises a motor, a rotary encoder, and a step-down gearbox. Its weight is all of 80 g!